1. International Committer On Illumination-CIE-88, Guide for the Lighting of Road Tunnels and Underpasses, 1990.
2. CIE Technical Report‑88–2004. Guide for the Lighting of Road Tunnels and Underpasses [R], 2004.
3. Özkaya, M., Aydınlatma Tekniği, Birsen Yayınevi, İstanbul, 1994, 91.
4. Laurentin, C., Berruto, V., Fontynont, M. Effect of thermal conditions and light source type on visual comfort appraisal. Lighting Research & Technol., 2000. V32, #4, pp. 223-233. https://doi.org/10.1177/096032710003200406
5. CIE 140, International Commission on Illumination, Road Lighting Calculations, Vienna-Austria, 33 (2000).